The governing principle of human muscle function is that muscle tissue loses its ability to contract. This occurs for a myriad of reasons and results in various problems (to vaying degrees) in people. This change in muscle tissues’ ability to contract is beyond our control. To illustrate this concept I ask my patients: “Can you prevent your hair from growing? Can you control your heartbeat?” There are many bodily functions that are beyond conscious control and the alteration in muscle tissue contractility is one such example.